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Substance Abuse
The harmful or hazardous use of psychoactive substances, including alcohol and illicit drugs.
Dependence
A state in which an organism requires a substance or condition for normal functioning or well-being, often associated with addiction.
Neurons
Specialized cells of the nervous system that transmit information to other nerve cells, muscle, or gland cells through electrical and chemical signals.
Dendrites
The branched extensions of a neuron that receive signals from other neurons and transmit them towards the cell body.
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